go to settings>system>unlocks and all the available unlocks will be there, the ones that are unlocked will show they are. In our area we dont have fast restart so all you need is the omnistar unlock. You will need glonass unlock for G2, $800 if my memory is correct.

I see some of the 750s that show omnistar unlocked but have only had rangepoint. Depending on what you are doing and how particular you are I would consider using rangepoint, $350 per year and you get Glonass with it, no unlocks.